Need D size, 32650, 26650, 18650 or AAA, AA rechargable batteries with converter suggestions (India)

Batteries and Chargers Rechargeable Batteries
3

For AA and AAA, I recommend Eneloops.

For D batteries, I recommend 3 AA to D battery adapters, like this:

https://www.amazon.com/dp/B01MEF4K44

For lithium-ion cells, check out this thread to see who ships to India:

https://budgetlightforum.com/t/-/54020